CN113480055A - A sewage treatment plant for heavy metal pollution - Google Patents

Abstract

The invention discloses a sewage treatment device for heavy metal pollution, which belongs to the field of sewage treatment equipment and comprises a treatment box, a side box, a primary filtering component, a control component and a feeding component, wherein supporting legs for supporting the treatment box and the side box are arranged at the bottoms of the treatment box and the side box, a partition plate for dividing the inner space of the treatment box into an upper cavity and a lower cavity is arranged in the treatment box, a communication component is arranged at the top of the lower cavity, a flowing cavity is arranged in the side box, an air inlet is arranged at the top of the side box, a feeding hole is arranged on the side wall of the side box, a funnel opening and a water outlet are arranged on the side wall of the treatment box, the feeding component is arranged on the side box and is used for controlling the opening and closing of the feeding hole, a linkage component and an air supply component are arranged in the lower cavity, and an adjusting opening is arranged at the top of the treatment box The integrated purification processes of solid-liquid separation and the like improve the sewage treatment efficiency, and have small investment and small occupied area.

Description

A sewage treatment plant for heavy metal pollution

Technical Field

The invention relates to the field of sewage treatment equipment, in particular to a sewage treatment device for heavy metal pollution.

Background

The metal wastewater is wastewater containing heavy metals discharged in the industrial production processes of mining and metallurgy, mechanical manufacturing, chemical industry, electronics, instruments and the like. Heavy metals in heavy metal wastewater generally cannot be decomposed and destroyed, and only can be transferred to the existing position and converted into the physical and chemical forms. The heavy metal wastewater treatment method is to treat in situ in a production place, a chemical precipitation method, an ion exchange method and the like are usually adopted for treatment, heavy metals in treated water can be discharged or recycled when the treated water is lower than a discharge standard, and the existing equipment for treating heavy metal pollution generally has the problems of poor purification capacity, single purification mode and incapability of treating generated sludge.

Patent CN109928450A discloses a metal sewage treatment device, which comprises a base, a collecting mechanism, a stirring mechanism and a detecting mechanism, wherein an outer barrel is fixed on the base, four feeding pipes are arranged on the outer side of the outer barrel, an inner barrel is arranged inside the outer barrel, first connecting rods are fixed on two sides of the inner barrel, two sides outside the inner barrel are fixedly connected with two sides inside the outer barrel through the first connecting rods, four feeding pipes are arranged, the collecting mechanism is fixedly arranged at the lower end of the inner barrel, the stirring mechanism is arranged in the inner barrel, and the detecting mechanism is arranged at the lower end of the collecting mechanism. Is difficult to improve the sewage treatment efficiency and can not integrate a plurality of functions to treat the sewage.

Disclosure of Invention

The invention aims to provide a sewage treatment device for heavy metal pollution, which aims to solve the technical problems that in the prior art, a plurality of devices are required to be matched for treating sewage, so that the whole set of devices has the limitations of high investment, large occupied area, low production efficiency and the like, the sewage treatment efficiency is difficult to improve, and a plurality of functions cannot be integrated for treating sewage.

The invention provides a sewage treatment device for heavy metal pollution, which comprises a treatment box, a side box, a primary filtering assembly, a control assembly and a feeding assembly, wherein the side box is fixed on one side wall of the treatment box, supporting legs for supporting the treatment box and the side box are arranged at the bottoms of the treatment box and the side box, the primary filtering assembly is movably arranged at the top of the treatment box, a partition plate for dividing the inner space of the treatment box into an upper cavity and a lower cavity is arranged in the treatment box, a communicating assembly is arranged at the top of the lower cavity, two ends of the communicating assembly are respectively connected with the partition plate and the side box, a flowing cavity is arranged in the side box, the control assembly is arranged on the side box, an air inlet communicated with the flowing cavity is arranged at the top of the side box, the control assembly is used for controlling the flowing cavity to be communicated with the lower cavity, a feeding hole is arranged on the side wall of the side box, and a funnel opening and a water outlet communicated with the lower cavity are arranged on the side wall of the treatment box, the feeding assembly is installed on the side box and is used for controlling the opening and closing of the feeding port, a linkage assembly and an air supply assembly are arranged in the lower cavity, and an adjusting port communicated with the upper cavity is formed in the top of the treatment box.

Further, the prefiltration subassembly includes filter screen, installation cover and connection mouth of pipe, the filter screen card is established at the top of handling the case and is located the bottom of installation cover, the top of handling the case is all installed through the bolt to installation cover and filter screen, connection mouth of pipe is connected with the top of installation cover.

Further, one side of side case is equipped with the round hole that is linked together with the cavity of resorption, is equipped with the grid in this round hole, and control assembly includes control motor, pivot, mounting panel, initiative umbrella tooth and driven part, driven part installs on the lateral wall of side case and is connected with the transmission of initiative umbrella tooth, control motor installs the top at the side case, the mounting panel is fixed on the inner wall of side case, the pivot is fixed on the mounting panel and the both ends of pivot are connected with control motor's output and initiative umbrella tooth respectively.

Further, driven part includes connecting axle, driven bevel gear and commentaries on classics board, the connecting axle rotates and installs on the lateral wall of side case to the both ends of connecting axle are located flow chamber and lower intracavity respectively, driven bevel gear and commentaries on classics board are fixed respectively on the both ends of connecting axle, driven bevel gear and initiative bevel gear meshing.

Further, the intercommunication subassembly includes connecting pipe and valve, the both ends of connecting pipe are connected with baffle and side case respectively, the valve is installed on the connecting pipe, the feeding subassembly includes pinion rack, driving motor, fluted roller and support plate, pinion rack slidable mounting just is located feed inlet department on the lateral wall of side case, the support plate is fixed on the lateral wall of side case, driving motor fixes on the support plate, driving motor's output is connected with the one end of fluted roller, the fluted roller meshes with the pinion rack mutually.

Further, the linkage subassembly includes linkage motor, worm, turbine, even axle, support and a plurality of stick that revolves, the linkage motor is installed on the lateral wall of handling the case and the output of linkage motor is connected with the one end of worm, the worm rotates the installation at the intracavity down, even the axle is vertical rotation and installs intracavity under, the turbine is fixed and is connected epaxially and with worm drive, the support is fixed on the top of even axle, and is a plurality of the stick that revolves is the circumference and distributes epaxially even.

Further, the air feed subassembly is including arranging material motor, two baffles and two plate bodys, it installs on the landing leg to arrange the material motor, two the plate body rotates and sets up the bottom at the cavity of resorption, the output of arranging the material motor is connected with the one end of two plate bodys, two the baffle is the interior diapire at the cavity of resorption of symmetry slope installation, and all is equipped with a plurality of aeration holes on every baffle.

Further, the top of handling the case sets up the draw-in groove that supplies the filter screen card to establish, be equipped with on the side case and supply the gliding spout of pinion rack, be equipped with the stirring subassembly that is used for accelerating the regulation sewage pH value in the epicoele.

Compared with the prior art, the invention has the beneficial effects that:

sewage flows into the upper cavity from the inner part of the mounting cover, the filter screen performs primary filtration on the sewage to remove larger impurities in the sewage, the PH value of the sewage is adjusted by introducing sodium hydroxide into the adjusting port, when the PH value of the sewage is adjusted to be neutral, the sewage is introduced into the flowing cavity through the communicating component, and a catalyst filled in the flowing cavity and the sewage perform oxidation-reduction reaction, wherein in order to increase the chemical reaction speed, air can be introduced into the flowing cavity through the air inlet to enhance the oxidation effect, the oxidized product is flocculent precipitate which is not easy to dissolve in water, the opening and closing of the feed inlet are controlled by the feeding component subsequently, the flocculent precipitate is manually cleaned through the feed inlet, then, the control component controls the round hole to be opened to enable the flowing cavity to be communicated with the lower cavity, the sewage is guided into the lower cavity from the flowing cavity, and a water purifying agent and a coagulant are introduced into the lower cavity through the funnel opening, under the action of the linkage assembly, the water purifying agent, the coagulant and the sewage are accelerated to be fully mixed, the purification efficiency of the sewage is further improved under the working of the air supply assembly, the free heavy metal and other impurities in the sewage are positioned at the bottom of the lower cavity along with coagulation and precipitation, the water in the flowing cavity is discharged from the water outlet, and finally, the discharge motor drives the two plate bodies to rotate to discharge the solid positioned at the bottom in the lower cavity, so that the solid-liquid separation is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the split structure of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a perspective sectional view of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a top view of the present invention;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

fig. 8 is a cross-sectional view taken along line C-C of fig. 6.

Reference numerals:

1. a treatment tank; 2. a side box; 3. a primary filtration component; 31. a filter screen; 32. mounting a cover; 33. connecting the pipe orifices; 4. a control component; 41. controlling the motor; 42. a rotating shaft; 43. mounting a plate; 44. driving bevel gears; 45. a driven member; 451. driven bevel gears; 452. rotating the plate; 5. a feed assembly; 51. a toothed plate; 52. a drive motor; 53. a toothed roller; 54. a carrier plate; 6. a support leg; 7. an upper chamber; 8. a lower cavity; 9. a partition plate; 10. a communicating component; 101. a connecting pipe; 102. a valve; 11. a flow chamber; 12. an air inlet; 13. a funnel opening; 14. a water outlet; 15. a linkage assembly; 151. a linkage motor; 152. a worm; 153. a turbine; 154. a connecting shaft; 155. a support; 156. a spinning rod; 16. a gas supply assembly; 161. a discharge motor; 162. a guide plate; 163. a plate body; 164. an aeration hole; 17. an adjustment port; 18. a circular hole; 19. a grid; 20. a card slot; 21. and a stirring component.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the present invention provides a sewage treatment apparatus for heavy metal pollution, including a treatment tank 1, a side tank 2, a primary filter assembly 3, a control assembly 4 and a feeding assembly 5, wherein the side tank 2 is fixed on a side wall of the treatment tank 1, the bottoms of the treatment tank 1 and the side tank 2 are provided with support legs 6 for supporting the primary filter assembly 3 and the primary filter assembly 3, the treatment tank 1 is provided with a partition plate 9 for dividing the internal space thereof into an upper chamber 7 and a lower chamber 8, the top of the lower chamber 8 is provided with a communicating assembly 10, two ends of the communicating assembly 10 are respectively connected with the partition plate 9 and the side tank 2, the side tank 2 is provided with a flow chamber 11, the control assembly 4 is mounted on the side tank 2, the top of the side tank 2 is provided with an air inlet 12 communicated with the flow chamber 11, the control assembly 4 is used for controlling the flow chamber 11 to be communicated with the lower chamber 8, be equipped with the feed inlet on the lateral wall of side case 2, the lateral wall of handling case 1 all is equipped with flare opening 13 and delivery port 14 that are linked together with cavity of resorption 8, feeding subassembly 5 is installed on side case 2 and is used for controlling the feed inlet switching, be equipped with linkage subassembly 15 and air feed subassembly 16 in the cavity of resorption 8, the top of handling case 1 is equipped with the regulation mouth 17 that is linked together with epicoele 7.

Particularly, prefiltration subassembly 3 includes filter screen 31, installation cover 32 and nozzle of a connecting pipe 33, filter screen 31 card is established at the top of handling case 1 and is located the bottom of installation cover 32, installation cover 32 and filter screen 31 are all installed at the top of handling case 1 through the bolt, nozzle of a connecting pipe 33 is connected with the top of installation cover 32, loops through nozzle of a connecting pipe 33, installation cover 32 and filter screen 31 with sewage and gets into in epicoele 7, and wherein filter screen 31 carries out prefiltration to sewage and contains great granule impurity in with it and get rid of, and bolted connection through filter screen 31 and installation cover 32 can realize the quick assembly disassembly of filter screen 31 and installation cover 32, is convenient for regularly clear up the impurity in the installation cover 32.

Specifically, a circular hole 18 communicated with the lower cavity 8 is formed in one side of the side box 2, a grid 19 is arranged in the circular hole 18, the control assembly 4 comprises a control motor 41, a rotating shaft 42, a mounting plate 43, a driving umbrella tooth 44 and a driven part 45, the driven part 45 is mounted on the side wall of the side box 2 and is in transmission connection with the driving umbrella tooth 44, the control motor 41 is mounted at the top of the side box 2, the mounting plate 43 is fixed on the inner wall of the side box 2, the rotating shaft 42 is fixed on the mounting plate 43, two ends of the rotating shaft 42 are respectively connected with the output end of the control motor 41 and the driving umbrella tooth 44, the PH value of the sewage is adjusted by introducing sodium hydroxide into the adjusting port 17, when the PH value of the sewage is adjusted to be neutral, the sewage is introduced into the flow cavity 11 through the communicating assembly 10, and oxidation-reduction reaction is performed on the sewage by utilizing a catalyst filled in the flow cavity 11, wherein, in order to increase the chemical reaction speed, air can be filled into the flow cavity 11 through the air inlet 12 to enhance the oxidation effect, the product formed after oxidation is flocculent precipitate which is not easy to dissolve in water, the opening and closing of the feed inlet are controlled by the feeding assembly 5 subsequently, the flocculent precipitate is cleaned manually through the feed inlet, then, the control motor 41 is used for driving the rotating shaft 42 connected with the output end of the control motor and the driving umbrella teeth 44 on the rotating shaft 42 to rotate, under the meshing of the driving umbrella teeth 44 and the driven part 45, the circular hole 18 is controlled to be opened so that the flow cavity 11 is communicated with the lower cavity 8, and sewage is guided into the lower cavity 8 from the flow cavity 11, wherein the grid 19 in the circular hole 18 prevents the flocculent precipitate in the flow cavity 11 from entering the lower cavity 8.

Particularly, driven part 45 includes connecting axle, driven bevel gear 451 and commentaries on classics board 452, the connecting axle rotates and installs on the lateral wall of side case 2 to the both ends of connecting axle are located flow chamber 11 and lower chamber 8 respectively, driven bevel gear 451 and commentaries on classics board 452 are fixed respectively on the both ends of connecting axle, driven bevel gear 451 meshes with initiative bevel gear 44, utilizes the pivot 42 that control motor 41 drive is connected rather than the output and the initiative bevel gear 44 on the pivot 42 to rotate, under initiative bevel gear 44 meshes with driven bevel gear 451, drives connecting axle one end and goes up commentaries on classics board 452 synchronous rotation, the round hole 18 switching of control immediately, the connected state of control flow chamber 11 and lower chamber 8 promptly.

Specifically, the communicating assembly 10 includes a connecting pipe 101 and a valve 102, two ends of the connecting pipe 101 are respectively connected to the partition plate 9 and the side box 2, the valve 102 is installed on the connecting pipe 101, a communicating state of the connecting pipe 101, that is, a communicating state of the upper chamber 7 and the flow chamber 11, can be controlled by the valve 102, the feeding assembly 5 includes a toothed plate 51, a driving motor 52, a toothed roller 53 and a carrier plate 54, the toothed plate 51 is slidably installed on a side wall of the side box 2 at a feeding port, the carrier plate 54 is fixed on a side wall of the side box 2, the driving motor 52 is fixed on the carrier plate 54, an output end of the driving motor 52 is connected to one end of the toothed roller 53, the toothed roller 53 is engaged with the toothed plate 51, the driving motor 52 drives the toothed roller 53 connected to rotate with the output end thereof, and the toothed roller 53 is engaged with the toothed plate 51 to drive the toothed plate 51 to slide, the opening and closing of the feed inlet is controlled immediately, so that the step of periodically cleaning flocculent precipitates in the flow cavity 11 is facilitated.

Specifically, the linkage assembly 15 includes a linkage motor 151, a worm 152, a worm wheel 153, a connecting shaft 154, a support 155 and a plurality of rotary rods 156, the linkage motor 151 is installed on the side wall of the treatment tank 1, the output end of the linkage motor 151 is connected with one end of the worm wheel 152, the worm wheel 152 is rotatably installed in the lower cavity 8, the connecting shaft 154 is vertically rotatably installed in the lower cavity 8, the worm wheel 153 is fixed on the connecting shaft 154 and is in transmission connection with the worm wheel 152, the support 155 is fixed at the top end of the connecting shaft 154, the plurality of rotary rods 156 are circumferentially distributed on the connecting shaft 154, a water purifying agent and a coagulant are introduced into the lower cavity 8 through a funnel opening 13, and the water purifying agent is polyaluminium chloride; the product is an inorganic high molecular compound, is a product between ALCL3 and ALOH3, is polymerized by hydroxyl bridging, has hydroxyl with different numbers in molecules, and has stronger bridging adsorption capacity; the coagulant is polyacrylamide (PAM for short), also called as coagulant III, the polyacrylamide molecule has positive gene CONH2, can adsorb and bridge with suspended particles dispersed in solution, has strong flocculation effect, can coagulate free heavy metal and other impurities and precipitates in sewage, then is linked with the motor 151 to drive the worm 152 connected with the output end to rotate, and drives the bracket 155 on the connecting shaft 154 and the plurality of rotary rods 156 on the bracket 155 to rotate under the drive of the worm 152 and the turbine 153, so that the full mixing between the water purifier and the coagulant and the sewage is accelerated, and the adsorption, flocculation and solid-liquid separation efficiency of the sewage is improved.

Particularly, air feed subassembly 16 is including arranging material motor 161, two baffle 162 and two plate bodies 163, it installs on landing leg 6, two to arrange material motor 161 the bottom that sets up at cavity 8 is rotated to plate body 163, it is connected, two to arrange the output of material motor 161 and the one end of two plate bodies 163 guide 162 is the interior diapire that the symmetry slope was installed at cavity 8 down, and all is equipped with a plurality of aeration holes 164 on every guide 162, can constantly be to the interior oxygen suppliment of cavity 8 through a plurality of aeration holes 164, improves the reaction rate of sewage with water purification agent and coagulant, and two baffles 162 carry out the guide to heavy metal and sediment, will discharge the sewage that has handled through delivery port 14, and remaining heavy metal and sediment are rotated through arranging two baffle 162 of material motor 161 drive, make the heavy metal and the sediment that are located cavity 8 discharge smoothly, accomplish the solid-liquid separation.

Particularly, handle the draw-in groove 20 that the card of case 1 was seted up and is supplied filter screen 31 to establish, the stable installation of the filter screen 31 of being convenient for, be equipped with on the side case 2 and supply the gliding spout of pinion rack 51, improve pinion rack 51's translation rate and carry on spacingly to pinion rack 51, be equipped with the stirring subassembly 21 that is used for accelerating the regulation sewage pH value in the epicoele 7, this stirring subassembly 21 is prior art, does not do too much to describe herein.

The working principle of the invention is as follows: sewage flows into the upper chamber 7 from the inside of the mounting cover 32, wherein the filtering net 31 primarily filters the sewage to remove larger impurities in the sewage, the PH value of the sewage is adjusted by introducing sodium hydroxide into the adjusting port 17, when the PH value of the sewage is adjusted to be neutral, the communication state of the connecting pipe 101 is controlled by the valve 102, the sewage is introduced into the flow chamber 11, the oxidation-reduction reaction is carried out on the sewage by utilizing a catalyst filled in the flow chamber 11, wherein, in order to increase the chemical reaction speed, air is filled into the flow chamber 11 through the air inlet 12 to enhance the oxidation effect, a product formed after the oxidation is flocculent precipitate which is difficult to dissolve in water, subsequently, the toothed roller 53 connected with the output end of the toothed roller is driven to rotate by the driving motor 52, the toothed plate 51 is driven to slide under the meshing of the toothed roller 53 and the toothed plate 51, the opening and closing of the feeding port is controlled immediately, and the flocculent precipitate in the flow chamber 11 can be cleaned manually at regular intervals, then, the control component 4 controls the circular hole 18 to open to enable the flow cavity 11 to be communicated with the lower cavity 8, sewage is guided into the lower cavity 8 from the flow cavity 11, a water purifying agent and a coagulant are introduced into the lower cavity 8 through the funnel opening 13, the linkage motor 151 drives the worm 152 connected with the output end of the linkage motor to rotate, the support 155 on the connecting shaft 154 and the plurality of rotary rods 156 on the support 155 are driven to rotate under the transmission of the worm 152 and the turbine 153, so that the full mixing between the water purifying agent and the coagulant and the sewage is accelerated, the adsorption, flocculation and solid-liquid separation efficiency of the sewage is improved, the plurality of aeration holes 164 can continuously supply oxygen to the lower cavity 8, the reaction speed of the sewage and the water purifying agent and the coagulant is improved, the two guide plates 162 guide heavy metals and sediments, the treated sewage is discharged through the water outlet 14, and the remaining heavy metals and sediments drive the two guide plates 162 to rotate through the discharge motor 161, the invention can carry out integrated purification processes of neutralization, catalysis, oxidation reduction, adsorption, flocculation, solid-liquid separation and the like on the sewage, improves the sewage treatment efficiency, and has small investment and small occupied area.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A sewage treatment plant for heavy metal pollution which characterized in that: comprises a processing box (1), a side box (2), a primary filtering component (3), a control component (4) and a feeding component (5), wherein the side box (2) is fixed on one side wall of the processing box (1), supporting legs (6) for supporting the primary filtering component and the side box (2) are arranged at the bottom of the processing box (1) and the side box (2), the primary filtering component (3) is movably arranged at the top of the processing box (1), a clapboard (9) for separating the internal space of the processing box (1) into an upper cavity (7) and a lower cavity (8) is arranged in the processing box (1), a communicating component (10) is arranged at the top of the lower cavity (8), two ends of the communicating component (10) are respectively connected with the clapboard (9) and the side box (2), a flowing cavity (11) is arranged in the side box (2), the control component (4) is arranged on the side box (2), an air inlet (12) communicated with the flowing cavity (11) is arranged at the top of the side box (2), control assembly (4) are used for controlling mobile chamber (11) and cavity of resorption (8) to be linked together, be equipped with the feed inlet on the lateral wall of side case (2), the lateral wall of handling case (1) all is equipped with funnel mouth (13) and delivery port (14) that are linked together with cavity of resorption (8), feed assembly (5) are installed on side case (2) and are used for controlling the feed inlet switching, be equipped with linkage subassembly (15) and air feed subassembly (16) in cavity of resorption (8), the top of handling case (1) is equipped with regulation mouth (17) that are linked together with epicoele (7).

2. The sewage treatment apparatus for heavy metal pollution according to claim 1, wherein: preliminary filtering component (3) include filter screen (31), installation cover (32) and connecting pipe mouth (33), filter screen (31) card is established at the top of handling case (1) and is located the bottom of installing cover (32), install cover (32) and filter screen (31) and all install the top of handling case (1) through the bolt, connecting pipe mouth (33) are connected with the top of installing cover (32).

3. The sewage treatment apparatus for heavy metal pollution according to claim 1, wherein: one side of side case (2) is equipped with round hole (18) that are linked together with cavity of resorption (8), is equipped with grid (19) in this round hole (18), and control assembly (4) are including control motor (41), pivot (42), mounting panel (43), initiative umbrella tooth (44) and driven part (45), driven part (45) are installed on the lateral wall of side case (2) and are connected with initiative umbrella tooth (44) transmission, the top at side case (2) is installed in control motor (41), mounting panel (43) are fixed on the inner wall of side case (2), pivot (42) are fixed on mounting panel (43) and the both ends of pivot (42) are connected with the output of control motor (41) and initiative umbrella tooth (44) respectively.

4. The sewage treatment apparatus for heavy metal pollution according to claim 3, wherein: driven part (45) are including connecting axle, driven bevel gear (451) and commentaries on classics board (452), the connecting axle rotates and installs on the lateral wall of side case (2) to the both ends of connecting axle are located respectively and flow chamber (11) and cavity of resorption (8) in, driven bevel gear (451) are fixed respectively on the both ends of connecting axle with commentaries on classics board (452), driven bevel gear (451) and initiative bevel gear (44) meshing.

5. The sewage treatment apparatus for heavy metal pollution according to claim 1, wherein: the utility model discloses a feed assembly, including connecting pipe (10), intercommunication subassembly (10) and valve (102), the both ends of connecting pipe (101) are connected with baffle (9) and side case (2) respectively, install on connecting pipe (101) valve (102), feed assembly (5) are including pinion rack (51), driving motor (52), toothed roller (53) and support plate (54), pinion rack (51) slidable mounting just is located feed inlet department on the lateral wall of side case (2), support plate (54) are fixed on the lateral wall of side case (2), driving motor (52) are fixed on support plate (54), the output of driving motor (52) is connected with the one end of pinion roller (53), toothed roller (53) mesh with pinion rack (51).

6. The sewage treatment apparatus for heavy metal pollution according to claim 1, wherein: linkage subassembly (15) are including linkage motor (151), worm (152), turbine (153), even axle (154), support (155) and a plurality of stick (156) revolve round, linkage motor (151) are installed on the lateral wall of handling case (1) and the output of linkage motor (151) is connected with the one end of worm (152), worm (152) are rotated and are installed in lower chamber (8), even axle (154) are vertical rotation and install in lower chamber (8), turbine (153) are fixed on even axle (154) and are connected with worm (152) transmission, the top at even axle (154) is fixed in support (155), and is a plurality of stick (156) revolve round and are the circumference and distribute on even axle (154).

7. The sewage treatment apparatus for heavy metal pollution according to claim 1, wherein: air feed subassembly (16) are including arranging material motor (161), two baffle (162) and two plate bodys (163), it installs on landing leg (6), two to arrange material motor (161) plate body (163) rotate the bottom that sets up in cavity of resorption (8), the output of arranging material motor (161) is connected with the one end of two plate bodys (163), two baffle (162) are the interior diapire that the symmetry slope was installed in cavity of resorption (8), and all are equipped with a plurality of aeration holes (164) on every baffle (162).

8. The sewage treatment apparatus for heavy metal pollution according to claim 5, wherein: the top of handling case (1) is seted up and is supplied draw-in groove (20) that filter screen (31) card was established, be equipped with on side case (2) and supply the gliding spout of pinion rack (51), be equipped with in epicoele (7) and be used for accelerating the stirring subassembly (21) of adjusting sewage pH value.

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